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Tono-Pen AVIA
Reichert

Tono-Pen AVIA

When you need portable, reliable tonometry that goes where the slit lamp cannot — operating rooms, bedside rounds, satellite clinics, or screening events — the Reichert Tono-Pen AVIA delivers accurate IOP readings with a familiar, trusted handheld design that requires no calibration. Its ergonomic pen-style form factor is one most clinicians already know how to use, and the AVIA technology provides consistent measurements across a wide range of clinical settings. For practices that need a portable tonometry option alongside their primary office instrument, or surgical settings where quick intraoperative IOP checks are routine, the Tono-Pen AVIA remains the most recognized handheld applanation tonometer in ophthalmology.

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Practice Fit

Where Tono-Pen AVIA Wins

Tono-Pen AVIA earns its keep when the practice needs reliable portable tonometry outside the ideal upright exam-lane setup.

Best Fit

OR, bedside, pediatrics, retina, hospital, and comprehensive practices that need a familiar handheld pressure option for difficult positioning or off-lane use.

Why This

If your practice needs a portable, familiar tonometry option for surgical settings, satellite clinics, or bedside rounds, the Tono-Pen AVIA is the most widely recognized handheld applanation tonometer in ophthalmology. Its ergonomic pen design requires no calibration and delivers consistent readings that most clinicians already trust.

Practice Impact

It extends tonometry into more settings, reduces workflow bottlenecks for hard-to-position patients, and gives the practice a dependable handheld backup or complement to in-lane pressure measurement.

Portable Tonometry

Why Practices Choose Tono-Pen AVIA

Any-Position Measurement

Gravity-independent applanation means reliable IOP readings with the patient seated, supine, reclined, or in a wheelchair. No slit lamp required — ideal for OR suites, bedsides, emergency settings, and non-standard positioning.

Quick-Tap Simplicity

The Tono-Pen AVIA’s single-use cover and rapid measurement cycle mean the device is ready when you are. No calibration routine, no setup delay, and no disinfection between patients when using disposable covers.

Statistical Confidence Indicator

Each measurement includes a built-in confidence indicator that tells the operator whether the reading is reliable. This reduces retakes and gives the clinician more confidence in the recorded IOP value.

Specifications

Technical Details
Measurement Principle
Mackay-Marg applanation (micro strain gauge transducer)
Transducer Tip
1.0 mm micro strain gauge
Measurement Range
5–55 mmHg
Accuracy
±1.2 mmHg (5–25) / ±1.5 mmHg (26–39) / ±2.4 mmHg (40–55)
Measurement Modes
2 modes: First Generation (5 taps) & Quick-Tap (2 taps)
Weight
71g (2.4 oz)
Dimensions
6.25" × 0.75" × 1.75" (16 × 2 × 4.4 cm)
Display
Dual-sided LCD
Battery
POWERCEL battery pack (2,500+ measurements)
Calibration
Calibration-free — no routine calibration required
The Carolina Optics Advantage

Why buy through us?

On-Site Setup & Staff Training

We bring the devices to your practice, configure them to your workflow, and train your techs until they’re confident with every measurement scenario.

Glaucoma Workflow Consulting

We help you integrate tonometry into a streamlined glaucoma screening workflow — from patient routing to documentation and follow-up protocols.

Same-Day Support

When you need help, you get our team directly — no call center, no ticket queue. Most issues resolved within 24 hours.

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Ready to see the Tono-Pen AVIA in action?

Talk to our team about pricing, availability, and scheduling a hands-on demo at your practice.

Request Pricing → Schedule a Demo →